5
3.5.
Power Supply
Ø
External Voltage: 5VDC +/- 10%
Ø
Batteries
:
n
Main Power: Built-in rechargeable Lithium-ion for system power
Ø
Backup Power: Rechargeable Lithium-ion battery for memory & RTC backup
Ø
Working voltage:
n
Normal Mode: 75-85mA
n
Power Saving Mode: 30mA
Ø
Working period (In Battery full power status):
n
Continued Mode: 12 hours
n
Power Saving Mode: 16 hours
【
NOTE 1
】
GBT-709 has built Li-battery inside, please avoid closing high temperature
environment or sun shine directly for a long time.
3.6.
Output and Interface
Ø
Output
I. Output protocol
u
Baud Rate
:
38400 bps
u
Data bit
:
8
u
Parity
:
No
u
Stop bit
:
1
II. Format -NMEA0183 V2.2
:
GPGGA (1time/1 sec), GPGSA (1 time/5 sec.), GPGSV (1time /5 sec.), GPRMC
(1time /1 sec.), GPVTG(1 time/I sec), (GLL, or SiRF binary format for optional).
III. Datum
:
WGS84
Ø
Input/ Output Interface
I. Compatible Bluetooth Serial Port Profile (SPP), Version1.1 and class 2(up
to 10 meter range).
II. In/Out Port. GPS signal (Out)/Command(In) with CMOS/TTL Level
。
n
Mini USB Type B Connector and Cable option
:
u
GAC60R2 (RS232 data cable)
u
GAC60U2 (USB data cable)
u
GAC60UP2 (Mini USB port to PS2 port ).